131423222420220 has 24 divisors (see below), whose sum is σ = 367985022776784. Its totient is φ = 35046192645376.

The previous prime is 131423222420101. The next prime is 131423222420279. The reversal of 131423222420220 is 22024222324131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095193520109 + ... + 1095193520228.

It is an arithmetic number, because the mean of its divisors is an integer number (15332709282366).

Almost surely, 2^{131423222420220} is an apocalyptic number.

131423222420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131423222420220 is an abundant number, since it is smaller than the sum of its proper divisors (236561800356564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131423222420220 is a wasteful number, since it uses less digits than its factorization.

131423222420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190387040349 (or 2190387040347 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 131423222420220 its reverse (22024222324131), we get a palindrome (153447444744351).

The spelling of 131423222420220 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, two hundred twenty-two million, four hundred twenty thousand, two hundred twenty".